CVE-2026-18526

UNKNOWN 0.0

HumHub 1.18.4 / 1.18.4-pl1 – Stored Cross-Site Scripting in oEmbed confirmation

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

HumHub Community Edition 1.18.4 and 1.18.4-pl1 contain a stored Cross-Site Scripting (XSS) vulnerability in the oEmbed confirmation rendering workflow.

CWE	CWE-79
Vendor	humhub
Product	humhub
Published	Aug 19, 2026

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Affected Versions

HumHub / HumHub

1.18.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

fluidattacks.com: https://fluidattacks.com/advisories/greeicy github.com: https://github.com/humhub/humhub github.com: https://github.com/humhub/humhub/pull/8373

Credits

Miguel Gomez Fluid Attacks' AI SAST Scanner